<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <!-- import CSS -->
  <link rel="stylesheet" href="https://cdn.staticfile.org/element-ui/2.15.9/theme-chalk/index.css">
</head>
<body>
<div id="app">
  <template>
    <el-button :plain="true" @click="open2">成功</el-button>
    <el-button :plain="true" @click="open3">警告</el-button>
    <el-button :plain="true" @click="open1">消息</el-button>
    <el-button :plain="true" @click="open4">错误</el-button>
  </template>
</div>
</body>
<!-- import Vue before Element -->
<script src="https://unpkg.com/vue@2/dist/vue.js"></script>
<!-- import JavaScript -->
<script src="https://cdn.staticfile.org/element-ui/2.15.9/index.min.js"></script>
<script>
  let v = new Vue({
    el: '#app',
    data: function() {
      return {

      }
    },
    methods:{
      open1() {
        v.$message('这是一条消息提示');
      },
      open2() {
        v.$message.success("成功消息");
      },

      open3() {
        v.$message.warning("警告消息");
      },
      open4() {
        this.$message.error('错了哦，这是一条错误消息');
      }
    }
  })
</script>
</html>